Question

scrie pe rand numerele 20;18;16;14;12;10;8 ca sume iar apoi ca produse

Answer 1

Răspuns:

10+10=20.....5*4=20

10+8=18.....9*2=18

8+8=16.......8*2=16

6+8=14......7*2=14

6+6=12......6*2=12

5+5=10....5*2=10

4-4=8......4*2=8

Answer 2

Răspuns:

10+10

9+9

8+8

7+7

6+6

5+5

4+4

..............

10×2

6×3

4×4

7×2

4×3

5×2

4×2